Merge lp:~libqtelegram-team/telegram-app/app-dev-fix-profile-image into lp:telegram-app/app-dev

[Michał Karnicki]

Works with this plugin branch:
lp:~libqtelegram-team/libqtelegram/same-image-all-chats-fix

Tested by:
 - opening a couple different group profiles
 - tapping on their photo
 - tapping on generic image in the group profile -- as expected, nothing happens

=== modified file 'ui/GroupProfilePage.qml'
--- ui/GroupProfilePage.qml	2014-12-11 18:50:22 +0000
+++ ui/GroupProfilePage.qml	2014-12-12 11:13:41 +0000
@@ -57,7 +57,6 @@
     body: Item {
         anchors.fill: parent
 
-
         Image {
             id: photoImage
             anchors {
@@ -70,11 +69,14 @@
             height: width
             asynchronous: true
             fillMode: Image.PreserveAspectCrop
-            source: groupModel.photo
+            source: groupModel.photo !== "" ? groupModel.photo
+                                            : "../images/" + Avatar.getAvatar(groupModel.chatId, true)
 
             MouseArea {
                 anchors.fill: parent
                 onClicked: {
+                    if (groupModel.photo === "") return;
+
                     var properties = { "title": groupModel.title,
                             "photoPreviewSource": groupModel.photo };
                     pageStack.push(previewPage, properties);